Bonn 2025 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

A: Fachverband Atomphysik

A 18: Precision Spectroscopy of Atoms and Ions IV (joint session A/Q)

A 18.3: Vortrag

Mittwoch, 12. März 2025, 15:00–15:15, KlHS Mathe

high-resolution spectroscopy of ¹⁷³Yb⁺ — •jian jiang¹, anna viatkina^1,2, saaswath JK¹, melina filzinger¹, martin steinel¹, burghard lipphardt¹, andrey surzhykov^1,2, and nils huntemann¹ — ¹Physikalisch-Technische Bundesanstalt, Braunschweig, Germany — ²TU Brauschweig, Braunschweig, Germany

Different isotopes of Yb⁺ have been employed in atomic clocks [1], quantum information processing [2], and new physics searches [3]. Owing to its large nuclear spin of 5/2, , ¹⁷³Yb⁺ is a particular promising candidate for advancing research in these areas compared to other isotopes [4,5,6]. However, ¹⁷³Yb⁺ is also relatively poorly investigated because of its complicated atomic structure.

In this talk, we will first discuss our approaches to overcome challenges in laser cooling and state preparation of a single ¹⁷³Yb⁺ ion confined in a Paul trap. We will then discuss measurements we have done for the hyperfine structure of the ²S_1/2 and ²D_3/2 states and the electric quadrupole clock transition between them. We will also discuss the ongoing search for the ²S_1/2  →  ²F_7/2 electric octupole clock transition.

Reference [1] PRL. 116, 063001 (2016), [2]Nature 630, 613-618 (2024), [3] PRL 125, 123002 (2020), [4] APL 119, 214002 (2021), [5] PRA 93, 052517 (2016), [6] Phys. Rev. A 96, 012516(2017)

Keywords: Trapped ion spectroscopy; Ion clocks; Fundamental physics test